With expressed breastmilk your baby needs 1-1.5oz or 30-45ml ISH per hour since last feed Babies fed exclusively on breastmilk should never need more than 4-5 ounces or 120-150ml ISH in one go
My LG has one bottle of expressed milk some evenings and will drink anywhere between 3-5oz (depending on how long it’s been since last feed) we feed on demand and usually every 2-3 hours during the day
My LO will have 130 at 3 - 3.5 hr but sometimes she will eat earlier and have less.
Expressed milk about 4 oz 120 ml x my girl is almost 5 months just changing to formula now and she drinks about 120-150 ml per feed , around 7 bottles in 24 hours
My boy is eating every 2 to 2 and the half hours between 150/180 mils I try to push him to 3/4 hours but didn’t work lol. 6 times a day but from 7ish pm till he wake up about 6:30-7:30 am he is not eating as sleeping.
My 5 month old has 210ml of expressed milk 6 times a day (usually every 3 hours)
My baby will be 5 months next week, he has 210ml of formula, 5 times a day. Roughly every 3-4 hours, we do it on demand but that’s what he seems to have settled on most recently!